Echos of Tachyons from higher dimensions – thousand time faster than light and imaginary mass According to the equation E = mc2/sqrt(1 - v2/c2), if v > c, the denominator becomes imaginary. Therefore, the rest mass m must also be imaginary in order that the energy E be real (and hence an observable quantity). Scientists finally understand Tachyons really exist. They exist in higher dimensions where speed start at higher than that of light. The dilemma lies as follow. You can never perceive Tachyons if you started at a speed less than c, since you would need an infinite amount of energy just to reach the speed of light. But if you travel in higher dimension, you are already in speed faster than light and hence there is no problems with the perceptions of Tachyons in higher dimensions. What Einstein said is that you cannot accelerate to the speed of light. It makes sense. Who ever created the 3D Universe made it like fish bowl. They can see. You can never see them. They achieved their goals with a simple mechanism. The speed in 3D world is restricted to that of light.
You can never accelerate to the speed of light unless you can imaginary mass ie., mass in higher dimensions. Once you can exceed the speed of light in other words you move into higher dimension, you can easily speed thousand times faster than light through propulsion in that dimensions.